205104255 has 16 divisors (see below), whose sum is σ = 329534304. Its totient is φ = 108933120.

The previous prime is 205104233. The next prime is 205104293. The reversal of 205104255 is 552401502.

It is a happy number.

It is not a de Polignac number, because 205104255 - 2⁶ = 205104191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24754 + ... + 31983.

It is an arithmetic number, because the mean of its divisors is an integer number (20595894).

Almost surely, 2^205104255 is an apocalyptic number.

205104255 is a deficient number, since it is larger than the sum of its proper divisors (124430049).

205104255 is a wasteful number, since it uses less digits than its factorization.

205104255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56986.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 205104255 is about 14321.4613430334. The cubic root of 205104255 is about 589.7367924886.

Adding to 205104255 its reverse (552401502), we get a palindrome (757505757).

The spelling of 205104255 in words is "two hundred five million, one hundred four thousand, two hundred fifty-five".